<template>
  <div>
    <el-menu default-active="1-4-1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose"
             :collapse="isCollapse" background-color="#545c64"
             text-color="#fff"
             active-text-color="#ffd04b">
      <h3>{{ isCollapse ? '后台' : '通用后台管理系统' }}</h3>
      <el-menu-item @click="clickMenu(item)" :index="item.name" v-for="item in noChildren" :key="item.name">
        <i :class="`el-icon-${item.icon}`"></i>
        <span slot="title">{{ item.label }}</span>
      </el-menu-item>
      <el-submenu :index="item.label" v-for="item in hasChildren" :key="item.label">
        <template slot="title">
          <i :class="`el-icon-${item.icon}`"></i>
          <span slot="title">{{ item.label }}</span>
        </template>
        <el-menu-item-group v-for="subitem in item.children" :key="subitem.path">
          <el-menu-item @click="clickMenu(subitem)" :index="subitem.path">{{ subitem.label }}</el-menu-item>
        </el-menu-item-group>
      </el-submenu>
    </el-menu>
  </div>
</template>

<script>
export default {
  name: "CommonAside",
  data() {
    return {
      menuData: [
        {
          path: "/",
          name: "home",
          label: "首页",
          icon: "s-home",
          url: "Home/Home",
        },
        {
          path: "/mall",
          name: "mall",
          label: "商品管理",
          icon: "video-play",
          url: "MallManage/MallManage",
        },
        {
          path: "/user",
          name: "user",
          label: "用户管理",
          icon: "user",
          url: "UserManage/UserManage",
        },
        {
          label: "其他",
          icon: "location",
          children: [
            {
              path: "/page1",
              name: "page1",
              label: "页面1",
              icon: "setting",
              url: "Other/PageOne",
            },
            {
              path: "/page2",
              name: "page2",
              label: "页面2",
              icon: "setting",
              url: "Other/PageTwo",
            },
          ],
        },
      ]
    };
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item) {
      console.log(item)
      this.$router.push(item.path)
    }
  },
  computed: {
    noChildren() {
      return this.menuData.filter(item => !item.children)
    },
    hasChildren() {
      return this.menuData.filter(item => item.children)
    },
    isCollapse() {
      return this.$store.state.tab.isCollapse
    }
  }
}
</script>

<style scoped lang="less">
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}

.el-menu {
  height: 100vh;

  h3 {
    color: #fff;
    text-align: center;
    line-height: 48px;
  }

  border-right: none;
}
</style>